时间序列--差分代码

时间序列--差分代码

from pandas import read_csv

from pandas import datet伏羲画八卦 ime

from pandas import Series

from matplotlib import pyplot

def parr(x):

return me('190'+x, '%Y-%m')

# create a difference餐饮操作流程图 d ries

def difference(datat, interval=1):

diff = list()

for i in range(interval, len(datat)):产品标识

value = datat[i] - datat[i - interval]

(value)

return Series(diff)

ries = read_c嘴巴周围长痘的原因 sv('', header=0, par_dates=[0], index_col=0, squeeze=True, date_parr=parr)

X =

diff = difference(X)

(diff)

()

⼿动差分--默认是剪去上⼀个

差分之前

差分之后

2.⾃动差分

from pandas import read_csv

from pandas import datetime

from matplotlib import pyplot

def parr(x):

return me('190'+x, '%Y-%m')

ries = read_csv('', header=0, 中班体育游戏 情人节活动宣传语 par_dates=[0], index_col=0预算的英文 , squeeze=True, date_parr=parr)

diff = ()

(diff)

()

还是默认1.可以⼿动设置